Green tea-bitter gourd slices and preparation method and application thereof

Abstract

The invention discloses a green tea-bitter gourd slices, and a preparation method and application thereof. The preparation method comprises the following steps of: pre-treating, debitterizing and hardening bitter gourds, and maintaining the bitter gourds green; crushing and sieving green tea, heating and digesting the green tea with deionized water, filtering the green tea, adding xylitol and high fructose syrup in filtrate, and adjusting the pH value of the filtrate to be 6-7, thus obtaining green tea soup; soaking the treated bitter gourd slices in the green tea soup to enable ingredients such as tea polyphenol, the xylitol and the high fructose syrup in the tea soup to permeate in the bitter gourd slices; and draining and drying the soaked bitter gourd slices which are fished out, thusobtaining the green tea-bitter gourd slices. The green tea-bitter gourd slices prepared by the preparation method disclosed by the invention are 0.2cm to 0.8 cm thick, brownish green, semi-ring-shaped, full in appearance, and free from crystals on the surface; the taste of the tea-bitter gourd slices is slightly bitter and then sweet, rich in tea aroma, and mild in bitter gourd flavour; and the total content of the tea polyphenol is 8840-11510 mg/kg. The green tea-bitter gourd slices are convenient to store, and can be eaten by chewing or drunk by being mixed with warm water or boiling water.

Description

technical field [0001] The invention belongs to the technical field of food processing, and specifically relates to a green tea bitter gourd slice prepared from bitter gourd and green tea as main raw materials, a preparation method and application thereof. technical background [0002] Bitter gourd, also known as bitter gourd, brocade litchi, and grape, is the fruit of bitter gourd of Cucurbitaceae. , clear mind and eyesight." Now studies have confirmed that bitter gourd is safe and non-toxic, and has pharmacological effects such as lowering blood sugar, anti-tumor, antibacterial, anti-AIDS, anti-oxidation, and improving human immunity. edible. In my country, the planting area and output of bitter gourd are very large, and most of them are eaten as vegetables. However, bitter gourd has a bitter taste, which limits the consumption of some consumers, and the production of bitter gourd is seasonal, which is easy to rot and deteriorate, resulting in waste of resources. process...

AI Technical Summary

Problems solved by technology

Chinese patent CN100596271C preparation method of low-sugar preserved bitter gourd, wherein the sugar juice contains 20-35% of white granulated sugar and 20-35% of starch syrup, and this kind of sweetener will increase the blood sugar level of the human body, which is not conducive to people with high blood sugar and diabetes Eating affects the role of bitter gourd in lowering blood sugar; use 5%-7% NaCl solution to boil to remove bitterness, repeat 3-5 times until there is basically no bitterness. Although this kind of processing fully removes bitter substances in bitter gourd, it will make Bitter gourd loses a lot of active ingredients

Chinese patent CN1265715C balsam pear herbal tea and its production method is to squeeze balsam pear, honeysuckle, chrysanthemum, ageratum, green tea, mint, licorice, etc., and then mix them to make liquid type, granular type or tea bag type, but bitter melon After being made into herbal tea drinks, the shape of the bitter gourd itself is lost, and consumers cannot see the bitter gourd with their own eyes. In the case of a mixed market, it is often difficult for consumers to distinguish the true effectiveness of the bitter gourd used in the product